Arcum's Weathervane 
Artifact
$0.20 #28356 0.00 31.3 years
, 
: Target snow land is no longer snow., : Target nonsnow basic land becomes snow.Click a line or tag to filter
Cards similar to Arcum's Weathervane expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Arcum's Sleigh76%
$0.21↑#287780.0031.3 years
", : Target creature gains vigilance until end of turn. Activate only during combat and only if defending player controls a snow land."
, : Target creature gains vigilance until end of turn. Activate only during combat and only if defending player controls a snow land."
Rime Dryad72%
$0.11↓#313110.71↑31.3 years
"Snow forestwalk"
Dark Fortress71%
$2.57↑#7168↑0.000.2 years↓
": Add 
or 
. Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Training Compound71%
$1.35↑#8876↑0.000.2 years↓
": Add or 
. Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Hidden Lair71%
$2.73↑#7989↑0.000.2 years↓
": Add 
or . Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Quirion Druid70%
$1.35↑#261860.19↑29.6 years↓
", : Target land becomes a 2/2 green creature that's still a land."
, : Target land becomes a 2/2 green creature that's still a land."
Melting70%
$0.23↑#318250.33↑31.3 years
"All lands are no longer snow."
Gleaming Bastion70%
$2.03↑#7837↑0.000.2 years↓
": Add 
or . Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."
Gathering Place70%
$1.52↑#8583↑0.000.2 years↓
": Add or . Activate only if this land entered this turn or if you control a basic land."
: Add or . Activate only if this land entered this turn or if you control a basic land."